Yokoyama, Osaka

Akio Yokoyama, Osaka JP

Patent application number

Description

Published

20130285579

ACTUATOR DRIVER - A actuator driver includes a digital filter configured to perform phase compensation of a digital torque command signal using a fed-back digital signal; a digital PWM generator configured to generate a plurality of pulse-width modulated PWM control signals in response to an output of the digital filter; at least one H bridge configured to select and output a first or second terminal voltage in response to the plurality of PWM control signals; first and second continuous time ΔΣ A/D converters configured to convert the first and second terminal voltages from analog to digital, respectively; and a feed-back filter configured to decimate outputs of the first and second continuous time ΔΣ A/D converters to feed back the digital signal to the digital filter.

10-31-2013

Jun Yokoyama, Osaka JP

Patent application number

Description

Published

20150122026

ULTRASONIC MEASURING METHOD AND DEVICE - An ultrasonic measuring method for measuring an inside of a measured object by using ultrasonic waves propagating through air includes attaching a sheet having an acoustic impedance higher than the air as well as lower than the measured object to the measured object and measuring the inside of the measured object to which the sheet is attached by using a sensor.

05-07-2015

Junji Yokoyama, Osaka JP

Patent application number

Description

Published

20100330354

PRESSURE-SENSITIVE ADHESIVE TAPE - The present invention provides a pressure-sensitive adhesive tape capable of exhibiting excellent adhesive property, and of inhibiting deformation of an adherend fixed with this pressure-sensitive adhesive tape, even under a high temperature or low temperature environment. The pressure-sensitive adhesive tape is one having a pressure-sensitive adhesive layer including a pressure-sensitive adhesive composition containing a (meth)acrylic polymer, wherein the (meth)acrylic polymer is obtained by copolymerization of a monomer mixture containing, at least, 60 to 96% by weight of a (meth)acrylic acid alkyl ester having an alkyl group with 4 to 12 carbon atoms, 2 to 10% by weight of a carboxyl group-containing monomer, and 2 to 8% by weight of an ethylenically unsaturated monomer having no carboxyl group, whose homopolymer has a glass transition temperature of 50 to 190° C. as monomer components, and the pressure-sensitive adhesive layer has a gel fraction of 0 to 30% by weight.

12-30-2010

20110117362

PRESSURE-SENSITIVE ADHESIVE TAPE - There is provided a pressure-sensitive adhesive tape that can exhibit good adhesion property and prevent display unevenness, which would otherwise be caused by deformation of the adherend fixed with it, even when exposed to environmental changes such as increases and decreases in temperature. The pressure-sensitive adhesive tape includes a pressure-sensitive adhesive layer comprising a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer that comprises a monomer component of at least an alkyl (meth)acrylate ester having an alkyl group of 4 to 12 carbon atoms, wherein the pressure-sensitive adhesive composition contains 100 parts by weight of the (meth)acryl-based polymer and 5 to 50 parts by weight of a rosin resin, and the pressure-sensitive adhesive layer has a stress-strain curve with a maximum stress of 1.2 to 3.5 N/mm

Kazuhisa Yokoyama, Osaka JP

Patent application number

Description

Published

20090127007

Compact Crawler Type Tractor - A compact crawler type tractor having an excellent turning feeling is provided. A hydraulic speed change mechanism for turning includes a hydrostatic transmission pump for turning and a hydrostatic transmission motor for turning, and is characterized in that the hydrostatic transmission pump for turning is a variable displacement pump, and an output of the hydrostatic transmission motor for turning is input into a differential mechanism. By combining the hydrostatic transmission pump for turning and the hydrostatic transmission motor for turning and the differential mechanism, an excellent turning feeling can be obtained.

05-21-2009

20120103291

ENGINE CONTROL DEVICE FOR WORKING VEHICLE - An engine control device for a working vehicle in which a start switch starting an engine and a starter relay supplying electric current to a starting motor for assisting the starting of the engine in connection with the start switch are connected to a controller, the controller supplies the starter relay with electricity by the operation of the start switch, and drives the engine along with the driving of the starting motor, wherein the engine control device includes a check mechanism of the starting motor which stops the supply of electricity to the starter relay depending on an electricity supplying time of the starter relay.

05-03-2012

Kazuo Yokoyama, Osaka JP

Patent application number

Description

Published

20090002838

Varifocal Lens Device - A first liquid and a second liquid are sealed in a cell, and the first liquid and the second liquid are not mixed with each other, and have different refractive indexes, with the interface of the two liquids being remained stationary by an edge portion of a movable opening member that is made in contact with the interface of the two liquids so that an actuator that is coupled to the movable opening member controls a shape of the interface of the two liquids by driving the movable opening member.

01-01-2009

20090125145

ROBOT APPARATUS - A working robot arm and an object recognizing unit used for recognizing a moving body such as a person and an animal are prepared, and while an object recognized by the object recognizing unit is blocked by a shielding operation by the use of the robot arm or a trunk portion of a robot mechanism unit, a job is carried out by the working robot arm so that it becomes possible to actively ensure a working space of the robot mechanism unit, and consequently to continue the job safely.

05-14-2009

20100089524

ACTUATOR AND METHOD FOR MANUFACTURING PLANAR ELECTRODE SUPPORT FOR ACTUATOR - An actuator as a drive source of robots and the like is usable for housekeeping assistance, job assistance, and nursing help. The drive source itself is small, light, flexible, and safe. A manufacturing method for a planar electrode support therefor is also described. The actuator has an electrolyte layer in contact with a conductive polymer layer disposed in between a first electrode having the conductive polymer layer attached thereto and opposite second electrode, for deforming the conductive polymer layer by application of electric fields to the electrodes. The first electrode has low rigidity in a longitudinal direction of the conductive polymer layer to facilitate expansion and contraction thereof.

LENS HOLDER DRIVING DEVICE AND IMAGE PICKUP UNIT EMPLOYING PLANARY-DRIVEN POLYMER ACTUATOR - There are provided a lens holder being capable of holding a lens and having flange portions at opposite end portions thereof along an optical axis, a planary-driven actuator including driving arm portions having lens holder support points for holding the outer surface of the lens holder at a plurality of opposing positions and having free-end side contact portions, a lens-holder retaining plate having spring-characteristic portions, and fixing frames which form the outer surfaces of a lens holder driving device and fix the respective components.

05-06-2010

20100221124

FLUID TRANSPORTING DEVICE USING CONDUCTIVE POLYMER - A fluid transporting device is provided with a pump chamber that has a pump function for sucking and discharging a fluid, and is filled therein with the fluid, a casing unit which forms one portion of a wall surface of the pump chamber, a diaphragm which is formed by a conductive polymer film that is subjected to electrochemomechanical expansion and contraction, and forms one portion of the wall surface of the pump chamber, an electrolyte chamber that contains an electrolyte therein, with one portion of the electrolyte being made in contact with the diaphragm, a power supply that applies a voltage to the diaphragm, and a pressure maintaining unit that maintains a pressure of the diaphragm within a predetermined range by moving or deforming the one portion of the wall surface of the electrolyte chamber.

09-02-2010

20100260623

FLUID TRANSPORTING DEVICE USING CONDUCTIVE POLYMER - A fluid transporting device is provided with a pump chamber that has a pump function for sucking and discharging a fluid, and is filled therein with the fluid, a casing unit which forms one portion of a wall surface of the pump chamber, a diaphragm which is formed by a conductive polymer film that is subjected to electrochemomechanical expansion and contraction, and forms one portion of the wall surface of the pump chamber, an electrolyte chamber that contains an electrolyte therein, with one portion of the electrolyte being made in contact with the diaphragm, a power supply that applies a voltage to the diaphragm, and a pressure maintaining unit that maintains a pressure to be applied to the diaphragm.

10-14-2010

20110121691

POLYMER ACTUATOR - There is provided a polymer actuator including a first electrode layer as an active member layer made of a conductive polymer, a second electrode layer opposing to the first electrode layer, and an electrolyte placed between the first electrode layer and the second electrode layer, so that the polymer actuator is driven by a voltage applied between both the electrode layers, wherein the electrolyte is constituted by a first electrolyte layer having a sliding function and a second electrolyte layer having an insulation maintaining function.

05-26-2011

20130308957

OPTICAL MICROPHONE - An optical microphone includes: an acousto-optic medium section having a pair of principal surfaces and at least one lateral surface provided therebetween; a restraint section which is in contact with the at least one lateral surface for preventing a shape change of the acousto-optic medium section; and a light emitting section for emitting a light wave so as to propagate through the acousto-optic medium section between the pair of principal surfaces. The pair of principal surfaces are in contact with an environmental fluid through which an acoustic wave to be detected is propagating and are capable of freely vibrating, and an optical path length variation of a light wave propagating through the acousto-optic medium section, which is caused by the acoustic wave that comes into the acousto-optic medium section from at least one of the pair of principal surfaces and propagates through the acousto-optic medium section, is detected.

11-21-2013

Patent applications by Kazuo Yokoyama, Osaka JP

Kota Yokoyama, Osaka JP

Patent application number

Description

Published

20130164180

Method And Apparatus For Manufacturing Hydrogen-Containing Gas - There is provided a technique and an apparatus for manufacturing a hydrogen-containing gas. An oxygen-containing gas is mixed with a feed gas obtained by mixing steam with a hydrocarbon fuel, this mixture is introduced into a catalytic reaction chamber, and a partial oxidation reaction and a steam reforming reaction are conducted to obtain a hydrogen-containing gas. In this reforming, an antechamber of the catalytic reaction chamber is heated up to a self-ignition temperature in a first catalyst section, where the self-ignition temperature is the temperature at which a mixed gas self-ignites during the advection period required for the mixed gas to move from a mixing chamber to the catalytic reaction chamber, with this temperature being at least a minimum partial-oxidation temperature and lower than a minimum steam reforming temperature.

06-27-2013

Makoto Yokoyama, Osaka JP

Patent application number

Description

Published

20100214206

SHIFT REGISTER - At least one embodiment the present invention a plurality of unit circuits connected in multiple stages, to normal operation when the unit circuits are simultaneously turned on to output high-level output signals. When a shift register malfunctions, so that output signals provided by previous- and subsequent-stage unit circuits are simultaneously set to high level, malfunction restoration circuits and included in a unit circuit detect the malfunction in at least one embodiment. The malfunction restoration circuit provides a high voltage to a node, thereby forcibly pulling down an output signal. Also, the malfunction restoration circuit forcibly discharges another node, so that a charge accumulated in a capacitance is released. As a result, the shift register in malfunction can be instantaneously restored to normal operation. At least one embodiment of the present invention is suitable for driver circuits or suchlike of display devices and imaging devices.

STORAGE CAPACITOR LINE DRIVE CIRCUIT AND DISPLAY DEVICE - In a storage capacitor line drive circuit driving a storage capacitor line of an active-matrix display device and driven by outputs of a scanning signal line drive circuit, at least one (VSS) of a high-potential supply voltage (VDD) and a low-potential supply voltage (VSS) differs from a supply voltage (GVSS) of a corresponding logical level of the scanning signal line drive circuit, the high-potential supply voltage and the low-potential supply voltage being used for generating a signal voltage of a preceding stage to an output stage. This makes it possible to achieve a storage capacitor line drive circuit capable of avoiding malfunctioning even in a case where the storage capacitor line drive circuit receives noise from a scanning signal line, and a display device including the storage capacitor line drive circuit.

09-30-2010

20120092311

Shift Register, Display-Driving Circuit, Displaying Panel, And Displaying Device - Disclosed is a shift register for use in a display driving circuit that simultaneously selects signal lines, including, in a stage thereof: a flip-flop including an initialization terminal; and a signal generating circuit that receives a simultaneous selection signal and that generates an output signal of the stage by use of an output of the flip-flop, wherein: the output signal of the stage becomes active due to an activation of the simultaneous selection signal so as to be active during a period of the simultaneous selection; the output of the flip-flop is non-active while the initialization terminal, a set terminal, and a reset terminal of the flip-flop; and the initialization terminal of the flip-flop receives the simultaneous selection signal. This shift register makes it possible to downsize various drivers.

04-19-2012

20120092323

Flip-Flop, Shift Register, Display Drive Circuit, Display Apparatus, And Display Panel - A flip-flop includes: a first, second, third, and fourth transistors; input terminals; and first and second output terminals, the first and second transistors constituting a first CMOS circuit such that gate terminals are connected and drain terminals are connected, the third and fourth transistors constituting a second CMOS circuit such that gate terminals are connected and drain terminals are connected, the first output terminal connected to a gate side of the first CMOS circuit and a drain side of the second CMOS circuit, the second output terminal connected to a gate side of the second CMOS circuit and a drain side of the first CMOS circuit, at least one input transistor included in the group of the first through fourth transistors, a source terminal of the input transistor being connected to one of the input terminals. This can provide a further compact flip-flop.

04-19-2012

Masaaki Yokoyama, Osaka JP

Patent application number

Description

Published

20080260970

Organic Electroluminescence Device - An organic electroluminescence device having a light emitting layer between an anode and a cathode wherein the device has a layer (L) between said cathode and said light emitting layer so as to contact the cathode, and the layer (L) comprises an organic compound (A) containing an aromatic hydrocarbon ring or hetero ring and a carbonyl group and at least one metal (B) selected from alkaline earth metals and group III metals.

METHOD AND APPARATUS FOR PRODUCING NANOFIBERS - A container having a plurality of orifices in an outer peripheral wall and having a space communicating with the orifices is rotated to extrude an electrically charged raw material liquid containing a polymer material from the space through the orifices by centrifugal force. This allows the electrically charged raw material liquid to form a fibrous material. At this time, the raw material liquid is supplied to the space in which the raw material liquid is filled by a raw material liquid pump so that the raw material liquid is extruded from the orifices at a predetermined pressure. That is, the raw material liquid in the space is pressurized. Also, the shape of the space in the container is set so that the centrifugal force exerted on the raw material liquid is constant.

Masanori Yokoyama, Osaka JP

Patent application number

Description

Published

20090156339

CHAIN GUIDE FOR TRANSMISSION DEVICE - In an engine timing transmission, one end of a unitary molded glass fiber-reinforced resin chain guide is pivotally supported on a bolt fixed to an engine block. A supporting portion adjacent the opposite end of the chain guide is in abutting relationship with the engine block. An intermediate supporting portion on the chain guide is spaced from the engine block, but, when tension in the chain increases, the chain guide flexes, allowing the intermediate supporting portion to come into abutting relationship with the engine block. Through holes in the chain guide allow deformation of the supporting portions.

06-18-2009

20130053194

CHAIN TRANSMISSION APPARATUS - In a power transmission utilizing a bushingless roller chain, the inner links of the chain have chain guide-contacting backs that have a convex arcuate shape, and the outer links are shaped so that they do not contact the chain guides. The rollers are wider than the sprocket teeth that they engage, and widthwise gaps between the ends of the rollers and the outer link plates allow the inner link plates to move in the widthwise direction. The gap between the inner surfaces of the rollers and the outer surfaces of the connecting pins of the chain is larger than the gap between the inner surfaces of the holes in the inner link plates and the outer surfaces of the connecting pins that extend through them.

02-28-2013

20130225342

CHAIN TRANSMISSION - A transmission chain is composed of pairs of outer plates and pairs of inner plates. The plates of each pair are in opposed, spaced relation to each other. The pairs of inner plates and the pairs of outer plates are disposed in alternating, overlapping, relationship along the length of the chain, with each pair of inner plates extending in a first direction into a space between one pair of outer plates, and in a second direction, opposite to the first direction, into a space between another pair of outer plates. Connecting pins connect the alternating pairs of plates in articulating relationship. Each of the connecting pins is press-fit into holes in a pair of inner plates and fits rotatably in holes in a pair of outer plates. A guide extends into a space between the outer plates, guiding the chain by engagement with inwardly facing surfaces of the outer plates.

08-29-2013

Patent applications by Masanori Yokoyama, Osaka JP

Mitsuhisa Yokoyama, Osaka JP

Patent application number

Description

Published

20140357461

BIT EXCHANGE METHOD AND BIT EXCHANGE DEVICE FOR SHIELD TUNNELING MACHINE - Sealing in the sliding gap of a rotating valve is improved to smoothly rotate the rotating valve during replacement of a roller bit. A valve housing portion is formed behind a bit housing portion having an opening at the front of a main cutter spoke. A rotating valve is rotationally disposed as a rotating body in the valve housing portion. A bit case containing the roller bit is moved into the bit housing portion so as to protrude from a removable passage of the rotating valve, and then the bit case is fixed by a cotter member to support a drilling reaction force. Thus, the sliding gap of the rotating valve is disposed in the bit housing portion and the valve housing portion and is covered with the bit case.

12-04-2014

Mitsuru Yokoyama, Osaka JP

Patent application number

Description

Published

20090066241

ORGANIC ELECTROLUMINESCENCE ELEMENT, AND ILLUMINATING DEVICE AND DISPLAY DEVICE THEREWITH - In an organic EL element, at the interface between a first electrode and a light-emitting layer, a diffraction grating with grating constants a, b, and c is provided in the form of surface irregularities on the first electrode. The grating constants are determined such that, when the effective refractive index as light experiences in the organic EL element is n, with respect to the periods d

Naofumi Yokoyama, Osaka JP

Patent application number

Description

Published

20150285523

AIR CONDITIONING APPARATUS - An air conditioning apparatus includes a casing having intake and blow-out ports, a partition member dividing an interior of the casing and having a fan entrance, a heat exchanger, a first drain pan mounted in the heat exchanger to receive water produced by dew condensation in the heat exchanger, and a centrifugal fan. The centrifugal fan includes a bladed wheel mounted in the fan compartment such that a rotary shaft of the bladed wheel is oriented along the fan entrance. The first drain is disposed adjacent to a drain pan nearby lateral part of multiple lateral parts of the casing that are disposed along the opening direction of the fan entrance. The rotary shaft is disposed adjacent to a bladed wheel nearby lateral part of the multiple lateral parts of the casing and being opposed to the drain pan nearby lateral part.

10-08-2015

Takuhei Yokoyama, Osaka JP

Patent application number

Description

Published

20110043592

OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, METHOD OF CONTROLLING OPTICAL WRITING DEVICE, AND COMPUTER PROGRAM PRODUCT - An optical writing device includes: a light source including arrays arranged in a main scanning direction, each array including light-emitting elements arranged in the main scanning direction; a correction-value holding unit to hold, correspondingly with a light-emitting element, a correction value for changing timing to read out pixel data stored in an image storage unit; and a light-source drive unit to drive the light source by reading out the stored pixel data stored, according to the correction value. The correction-value holding unit includes a first area for holding a first correction value corresponding to a first light-emitting element located at an end of an array and a second area for holding a second correction value corresponding to a second light-emitting element other than the first light-emitting element, the first holding area being larger than the second holding area.

02-24-2011

20120056961

OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, AND METHOD AND PROGRAM PRODUCT FOR CONTROLLING OPTICAL WRITING DEVICE - An optical writing device is provided with a pixel information acquiring unit that acquires multilevel pixel information in which one pixel is expressed in multilevel scales, a line pixel information storing unit that stores the multilevel pixel information for each main scanning line, a light emission control unit that optically exposes the photosensitive element by controlling the binary light source on the basis of the multilevel pixel information. The photosensitive element is exposed to the binary light source with a period corresponding to N-fold in a sub scanning direction resolution of the multilevel pixel information, wherein N is a positive integer, so that the N times exposures corresponds to an exposure for one pixel in the original resolution. The switch on/off statuses of the binary light source are controlled in the N times exposures for each pixel, on the basis of lighting rate information for converting the multilevel scales into a lighting rate in the N times exposures.

03-08-2012

20120057889

IMAGE PROCESSING APPARATUS, IMAGE FORMING APPARATUS, AND IMAGE PROCESSING METHOD - An image processing apparatus for an image forming apparatus including a line head array that forms an image by illuminating one or more illumination elements in correspondence with image data. The image processing apparatus includes a detection part configured to detect a linear image extending in a sub-scanning direction in the image data, and an adjustment part configured to adjust a density of the linear image so that the energy used in illuminating the one or more illumination elements for forming the linear image is reduced compared to the energy used in forming the linear image without adjusting the density of the linear image.

03-08-2012

20120061909

IMAGE PROCESSING APPARATUS, AN IMAGE FORMING APPARATUS, AN IMAGE PROCESSING METHOD AND A RECORDING MEDIUM - An image processing apparatus includes a reading part configured to optically read skew amount measurement patterns and opposite ends of a paper sheet; an image skew amount detecting part configured to detect skew amounts on a color basis based on the skew amount measurement patterns; a paper sheet skew amount detecting part configured to detect a skew amount of the paper sheet based on a displacement between the opposite ends of the paper sheet; a skew correction amount calculating part configured to calculate skew correction amounts of the respective colors based on the skew amounts; and a skew correcting part configured to shift the images to correct the skews by recording input image data in plural lines of a line memory, dividing the input image data into plural areas in a main scanning direction, and setting line delay amounts on an area basis based on the skew correction amounts.

03-15-2012

20120062681

OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, AND METHOD AND PROGRAM PRODUCT FOR CONTROLLING OPTICAL WRITING DEVICE - An optical writing device that forms an electrostatic latent image on a photoreceptor. The device includes a pixel-information acquiring unit, a line-pixel-information storage unit that stores the acquired pixel information corresponding to a plurality of lines for each main scanning line, a light source device that exposes the photoreceptor with a period corresponding to an N-fold sub-scanning direction resolution of the pixel information, a positional-shift-information storage unit that stores a positional shift information, a sub-line counting unit that counts a sub-line period, a reading-line selecting unit that performs N times of selection that determines which main scanning line is selected as the line from which the pixel information is read out, on the basis of a calculated value from the counted value of the sub-line period and the positional shift information, and a pixel-information reading unit.

03-15-2012

20120062682

IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND COMPUTER PROGRAM PRODUCT FOR IMAGE PROCESSING - An embodiment of the image processing apparatus for controlling the lighting of a line head that is driven with binary data and performs exposure with subline lighting to thereby form images, includes: a subline generating unit that generates a plurality of sublines from a same image data; an inclination correcting unit that exposes the generated sublines so as to generate correction image data used to correct an inclination of an exposure position; a gradation control unit that controls the lighting of sublines based on the correction image data generated by the inclination correcting unit to express gradation; and a light intensity correction unit that corrects and controls the light intensity based on the correction image data generated by the inclination correcting unit, wherein an output of the gradation control unit and an output of the light intensity correction unit are input into the line head in parallel.

03-15-2012

20120147114

LIGHT EMISSION CONTROL DEVICE, LIGHT EMISSION CONTROL METHOD, AND IMAGE FORMING APPARATUS - A light emission control device images an electrostatic latent image on a photosensitive element by a plurality of light emitting elements corresponding to a line in a second direction perpendicular to a first direction which is a rotational direction the photosensitive element. The light emission control device includes: a detecting unit that detects a rotational position of the photosensitive element, in the first direction, corresponding to a line in the second direction; an acquiring unit that acquires a distance between the light emitting elements and the rotational position of the photosensitive element in the first direction detected by the detecting unit; and a control unit that controls light emission by the light emitting elements according to the distance acquired by the acquiring unit and corrects a fluctuation in a density of a visible image converted from the electrostatic latent image.

06-14-2012

20120154827

LINE-HEAD CONTROL DEVICE, IMAGE FORMING APPARATUS, AND LINE-HEAD CONTROL METHOD - A line-head control device that controls a line head includes: a calculation unit that divides image data into a plurality of areas in sub-scanning direction and calculates a printing percentage for each of the areas; an allocation unit that allocates a total correction amount, for correcting magnification of the image data in the sub-scanning direction, to the areas according to the printing percentage for each of the areas calculated by the calculation unit; and a control unit that changes an emission period of the light emitted from the line head so as to satisfy a partial correction amount that is an allocation of the total correction amount to each of the areas, exposes the image carrier to the light emitted from the line head with the changed light emission period, thereby causing a latent image to be formed on the image carrier based on the image data.

06-21-2012

20120229866

IMAGE FORMING APPARATUS AND IMAGE DENSITY DETECTING METHOD - An image forming apparatus performs pseudo gradation processing using dithering, and includes an image carrier; a plurality of light-emitting element arrays arranged in a main-scanning direction and including a plurality of light-emitting elements; an image forming unit performing lighting control of the arrays and forming a pattern image on the image carrier; a detecting unit detecting a density of the pattern image; a position detecting unit detecting a position in the main-scanning direction of the detecting unit with respect to the light-emitting element arrays; a determining unit that, based on the detected position, determines whether the detecting unit is positioned at a proper detection position with respect to the pattern image on which noise has no effect; and an operation control unit that, when the detecting unit is positioned at the proper detection position, performs an image density detection operation on the pattern image using the detecting unit.

09-13-2012

20120262750

IMAGE FORMING APPARATUS AND METHOD OF ADJUSTING IMAGE - An image forming apparatus includes plural image forming units of plural colors, each including a print head including plural LED chips aligned in a main scanning direction; a screen angle selecting unit that selects screen angles for the plural colors respectively based on the amounts of skew of the plural image forming units; an image processing unit that performs image processing on input data to be expressed by pixels of the plural colors such that the pixels of the colors have the corresponding screen angles selected by the screen angle selecting unit; a correction amount determining unit that determines a total amount of skew correction based on the amount of skew detected by the skew detection unit, and determines the amounts of skew correction in the sub-scanning direction for predetermined groups of the pixels, based on the total amount of skew correction, for each of the colors.

10-18-2012

20120300010

OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, OPTICAL WRITING METHOD, AND COMPUTER-READABLE RECORDING MEDIUM - An optical writing device stores pieces of dithering information indicating dithering patterns whose densities are different, each piece of dithering information including pieces of identification information associated with pixels of the corresponding dithering pattern, and stores pieces of pixel setting information in which pieces of colored/colorless information indicating each of the pixels is colored or colorless are associated with the pieces of identification information, the pieces of colored/colorless information being set based on a resolution of a light source for forming an electrostatic latent image. The optical writing device also includes a control unit configured to arrange the same dithering patterns in a way that the dithering patterns form a pattern with a given size, and cause the light source to emit light based on information generated by setting the pixels of each of the same dithering patterns to be colored or colorless in accordance with the pixel setting information.

11-29-2012

20130063536

LIGHT SOURCE CONTROL APPARATUS AND IMAGE FORMING APPARATUS - A light source control apparatus which controls, based on image data input, light emission of a light source which forms an electrostatic latent image on an image bearing body in an electrophotographic image forming apparatus is disclosed, including a pattern generating unit which generates an internal pattern for position aligning and concentration correcting according to the image data; and a mirroring processing unit which performs a process of mirroring the image data and the internal pattern at a later stage of the pattern generating unit.

03-14-2013

20130084109

IMAGE FORMING APPARATUS - An image forming apparatus can transfer a plurality of color component images onto a surface of a recording medium to form an image on the recording medium. The image forming apparatus includes a pattern generation part to generate information about an alignment pattern to be used for a calibration of an image forming, a plurality of stations each including a photosensitive drum to form an alignment pattern corresponding to each of a plurality of color components onto a carry belt or the recording medium, and a read part to detect a plurality of alignment patterns formed by the plurality of stations.

04-04-2013

20130207339

IMAGE FORMING DEVICE AND CONTROL METHOD FOR IMAGE FORMING DEVICE - According to an embodiment, provided is an image forming device that includes: an image forming unit forming an image in a predetermined cycle in a direction orthogonal to a conveying direction of a printing medium; a velocity acquisition unit acquiring a conveying velocity of the printing medium at a position where the image is formed by the image forming unit; and a correcting unit correcting the cycle on which the image forming unit forms the image in accordance with the conveying velocity acquired by the velocity acquisition unit.

08-15-2013

20130242318

IMAGE FORMING APPARATUS AND METHOD FOR CONTROLLING THE SAME - In the invention, an inclination amount of sensors is reflected in positional deviation correction patterns, and for correcting formation positions of images of various colors, the positional deviation correction patterns are formed on a conveying belt. The positional deviation correction patterns are detected by the sensors. A control unit calculates positional deviation correction amounts based on detection results of the positional deviation correction patterns. Based on the calculated positional deviation correction amounts, the control unit performs calculation for correcting the positional deviation correction patterns, and cancels the inclination amount reflected in the calculation results to obtain final positional deviation correction amounts. Skew correction is performed based on the final positional deviation correction amounts, and thus, the positional deviations are corrected.

09-19-2013

20140139607

OPTICAL WRITING DEVICE, IMAGE FORMING APPARATUS, AND METHOD OF CONTROLLING OPTICAL WRITING DEVICE - An optical writing device is configured to form electrostatic latent images on a plurality of photosensitive elements by a plurality of light sources. The optical writing device includes: an image-data acquiring section that acquires image data; and a light-source control section that performs light-emission control on the light source based on pixel data generated from acquired image data, and also performs a neutralization process on the photosensitive element by controlling the light source to expose the photosensitive element to light. In the neutralization process, the light-source control section divides a period during which light-on/off control can be performed on the light source, into sub-periods based on pixel data input to the light-source control section, and causes the light sources to be lit in any one of the sub-periods so as to always place at least one of the plurality of light sources in a light-off state.

05-22-2014

Patent applications by Takuhei Yokoyama, Osaka JP

Tetsuya Yokoyama, Osaka JP

Patent application number

Description

Published

20150258495

EXHAUST GAS PURIFICATION DEVICE - In an exhaust gas purification apparatus provided in an exhaust as path of an engine, it is an object of the present invention to shorten a pipe length of a bypass path bypassing a purification catalyst as short as possible, thereby reducing initial costs. The exhaust gas purification apparatus includes a purification casing in which at least the purification catalyst is accommodated. The purification catalyst purifies exhaust gas from the engine. The purification casing is integrally provided with the bypass path separately from the purification path in which the purification catalyst exists. The bypass path makes the exhaust gas bypasses the purification catalyst without passing through the purification catalyst.

Yohsuke Yokoyama, Osaka JP

Yuji Yokoyama, Osaka JP

Patent application number

Description

Published

20120225337

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME - A non-aqueous electrolyte secondary battery comprising: an electrode group in which a long first electrode, a long second electrode, and a long separator disposed therebetween are wound spirally; and a non-aqueous electrolyte, is provided. The first electrode includes a sheet-like first current collector and a first active material layer disposed on a surface of the first current collector. The second electrode includes a sheet-like second current collector and a second active material layer disposed on a surface of the second current collector. An end portion of the first electrode on a winding-end side of the electrode group has a non-linear form and faces the second electrode placed on an outer circumferential side with the separator therebetween. The non-linear form is preferably a periodically continuous form, for example a waveform.

09-06-2012

20130157096

NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING THE SAME - Disclosed is a non-aqueous electrolyte secondary battery including: a spirally-wound electrode group including a continuous first electrode, a continuous second electrode, and a continuous separator interposed between the first electrode and the second electrode; and a non-aqueous electrolyte. The first electrode includes a sheet-like first current collector, and a first active material layer formed on a surface of the first current collector; and the second electrode includes a sheet-like second current collector, and a second active material layer formed on a surface of the second current collector. In the electrode group, the winding terminal end of the first electrode faces the second electrode on the further outer peripheral side, with the separator interposed therebetween. The facing site of the second electrode where the second electrode faces the winding terminal end of the first electrode is reinforced with a reinforcing component for supplementing the thickness of the second electrode.

06-20-2013

20130309529

CYLINDRICAL BATTERY - Disclosed is a cylindrical battery including: a cylindrical wound electrode group including sheet-like positive and negative electrodes, and a separator interposed therebetween; a bottomed cylindrical battery case having an opening and accommodating the electrode group; and a sealing unit sealing the opening. The electrode group has, at its center portion, a cavity extending in the axis direction thereof. The sealing unit includes a terminal plate having a vent hole, and a valve plate made of an electrically conductive material. The valve plate includes first and second rupturable portions each configured to be ruptured by an increase in the internal pressure of the battery case. The first rupturable portion is provided so as to surround a first region of the valve plate facing the cavity. The second rupturable portion is provided so as to surround a second region of the valve plate. The second region includes the first region.

11-21-2013

20150255786

POSITIVE ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a positive electrode for nonaqueous electrolyte secondary batteries including a positive electrode mixture layer formed of a positive electrode mixture paste containing a positive electrode active material. The positive electrode active material has a particle diameter of 2 μm or more and less than 7 μm. The positive electrode mixture layer includes a first mixture layer in which a maximum diameter of pores formed between particles of the positive electrode active material is more than 1.0 μm and 5.0 μm or less, and a second mixture layer in which a maximum diameter of the pores is 1.0 μm or less. The second mixture layer is arranged closer to the current collector than the first mixture layer. A ratio of a thickness of the first mixture layer to a thickness of the second mixture layer is more than 0.1 and 1.0 or less.